What was found
AFTER PUSH BACK, AFT ZONE TEMP LIGHT CAME ON WHEN PRESSING THE RECALL. LIGHT WENT OUT WHEN RESET. ACFT GROUNDED. PRESSED MASTER CAUTION RECALL. NO AFT ZONE TEMP LIGHT OR PACK REF FIM 21-62 TASK 848. PERFORMED BITE CK OF CONTROLLERS. FOUND RT CONTROLLER LOGGED STANDBY PACK REF FIM 21-62, TASK 801. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE PROCEDURE AND NR 2 CONTROLLER STILL SHOWS CONTROLLER FAULT, STANDBY PACK, IAW FIM 21-62, 803. REMOVED & REPLACED NR 2 TEMP CONTROLLER REF AMM 21-61-20-401, OPS CK GOOD.